This is a front-end for the Online Encyclopedia of Integer Sequences, made by Christian Perfect. The idea is to provide OEIS entries in non-ancient HTML, and then to think about how they're presented visually. The source code is on GitHub.
| n | a(n) |
|---|---|
| 1 | 1 |
| 2 | 3 |
| 3 | 9 |
| 4 | 79 |
| 5 | 658 |
| 6 | 10783 |
| 7 | 255406 |
| 8 | 9891331 |
| 9 | 588765472 |
| 10 | 55421789236 |
| 11 | 8214384910527 |